Are you disturbed and irritated by the gaseous like substance that bothers your digestive system? Do you also feel chest pain at some points because of this scenario? Then you may be undergoing what they call acid reflux.
What is the actual cause of this scenario? We can put it this way. The esophageal muscle which is a ring-like doorway for food to pass through from the esophagus to the stomach has a natural ability to open when the food gets in and tightens to close the particles in the stomach, acids included. Certain food triggers could cause this muscle to relax and will not be able to close very well to seal the acids in as the food is being digested. This happening would cause the acids to easily rise up to the esophagus and result in heartburn (a painful chest sensation) and induce coughs and impaired breathing.
It’s not a simple situation that you can just deal with overnight (or ignore at some point). When acid reflux and heartburn recurrently ensues, a complication called GERD or gastroesophageal reflux disease could take place. Only the expert advice of doctors could determine the extent of damage that both acid reflux and GERD could cause to the esophagus and the proper functioning of other systems and organs.